-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 rAsubss6se6aHo9dSgWJkw==

<SEC-DOCUMENT>0001307580-04-000001.txt : 20041223
<SEC-HEADER>0001307580-04-000001.hdr.sgml : 20041223
<ACCEPTANCE-DATETIME>20041223151518
ACCESSION NUMBER:		0001307580-04-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20041221
FILED AS OF DATE:		20041223
DATE AS OF CHANGE:		20041223

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EVOLVING SYSTEMS INC
		CENTRAL INDEX KEY:			0001052054
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING SERVICES [7371]
		IRS NUMBER:				841010843
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		9777 MT PYRAMID COURT
		CITY:			ENGLEWOOD
		STATE:			CO
		ZIP:			80112
		BUSINESS PHONE:		3038021000

	MAIL ADDRESS:	
		STREET 1:		9777 MT PYRAMID COURT
		CITY:			ENGLEWOOD
		STATE:			CO
		ZIP:			80112

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Skinner Peter Jackson
		CENTRAL INDEX KEY:			0001307580

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-24081
		FILM NUMBER:		041224051

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		303-802-2594

	MAIL ADDRESS:	
		STREET 1:		C/O EVOLVING SYSTEMS INC.
		STREET 2:		9777 MT. PYRAMID COURT, SUITE 100
		CITY:			ENGLEWOOD
		STATE:			CO
		ZIP:			80112
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-12-21</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001052054</issuerCik>
        <issuerName>EVOLVING SYSTEMS INC</issuerName>
        <issuerTradingSymbol>EVOL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001307580</rptOwnerCik>
            <rptOwnerName>Skinner Peter Jackson</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O EVOLVING SYSTEMS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>9777 MT. PYRAMID COURT, SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>ENGLEWOOD</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80112</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.51</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-12-21</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>30000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-12-20</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>30000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Options to purchase 10,000 shares vest on December 21, 2005, options to purchase the remaining 20,000 shares vest in eight quarterly installments beginning March 21, 2006.</footnote>
        <footnote id="F2">Mr. Skinner received stock options for his service on the Board of Directors. The options were granted without payment of consideration.</footnote>
        <footnote id="F3">Pursuant to the governing documents of Apax Europe IV - A, L.P., Apax Europe IV - B, L.P., Apax Europe IV - C GmbH &amp; Co. KG, Apax Europe IV - D, L.P., Apax Europe IV - E, L.P., Apax Europe IV - F, C.V. and Apax Europe IV - G, C.V. (collectively, the &quot;Europe IV Funds&quot;), any proceeds on the exercise of the options will be remitted to the investment advisor of the Europe IV Funds and reduce the management fee paid to the investment advisor.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Peter Jackson Skinner</signatureName>
        <signatureDate>2004-12-21</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----